Device and method for monitoring signal direction in an...

H - Electricity – 04 – B

Patent

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H04B 10/00 (2006.01) H04B 10/08 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2410897

A method and device are disclosed for monitoring communication activity within an optical communications network. The device includes a pair of optical components for tapping optical signals transported across a fiber optic line in the optical communications network. At least one optical performance monitor (OPM) receives tapped signals from the pair of optical components. An optical switch, controlled by the OPM, selectively provides to the at least one OPM tapped signals corresponding to optical signals traveling on the fiber optic line in a first direction. The OPM measures the various signal characteristics of the tapped signals when the optical switch is opened and closed, and determines the direction of travel of optical signals on the first optic line based upon the measured signal characteristics.

L'invention concerne un procédé et un dispositif destinés au suivi d'une activité de communications dans un réseau de communications optiques. Le dispositif comprend une paire de composants optiques permettant de dériver des signaux optiques transportés le long d'une ligne de fibre optique dans le réseau de communications optiques. Au moins une unité de suivi de performance optique (OPM) reçoit des signaux dérivés provenant de la paire de composants optiques. Un commutateur optique, commandé par l'OPM, permet de sélectionner au moins un des signaux dérivés OPM correspondant aux signaux optiques se déplaçant sur la fibre optique dans une première direction. L'OPM permet de mesurer les caractéristiques variées des signaux dérivés lorsque le commutateur optique est ouvert et fermé, et de déterminer ainsi la direction de déplacement des signaux optiques sur la première fibre optique sur la base des caractéristiques de signal mesurées.

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